alleryStart learning →Mendel counted 705 violet and 224 white plants in one F2 generation for flower colour. Which ratio does that give?
AAbout 1 to 1
BAbout 3 to 1
CAbout 2 to 1
DAbout 4 to 1
Answer & Solution
Correct answer: B. About 3 to 1
1. Divide the larger count by the smaller one: 705 divided by 224.
2. That gives 3.15, so the violet to white ratio is about 3.15 to 1.
3. Rounded to whole numbers this is approximately 3 to 1.
4. A 1 to 1 result would need about 465 of each, and a 4 to 1 result would need about 186 white.
5. A 2 to 1 result would need about 353 white plants, far more than the 224 counted.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 12 "Mendel's Experiments and Heredity", section 12.1 Mendel's Experiments and the Laws of Probability_
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